CN102224725A - Method and apparatus for aquiring an imei associated to an imsi - Google Patents

Method and apparatus for aquiring an imei associated to an imsi Download PDF

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Publication number
CN102224725A
CN102224725A CN2008801320495A CN200880132049A CN102224725A CN 102224725 A CN102224725 A CN 102224725A CN 2008801320495 A CN2008801320495 A CN 2008801320495A CN 200880132049 A CN200880132049 A CN 200880132049A CN 102224725 A CN102224725 A CN 102224725A
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CN
China
Prior art keywords
subscriber equipment
sign
message
imei
isup
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Pending
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CN2008801320495A
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Chinese (zh)
Inventor
罗希尔·奥古斯特·卡斯帕·约瑟夫·诺尔德斯
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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Publication of CN102224725A publication Critical patent/CN102224725A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
    • H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
    • H04L63/1416—Event detection, e.g. attack signature detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud
    • H04W12/126—Anti-theft arrangements, e.g. protection against subscriber identity module [SIM] cloning

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Technology Law (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method comprises the steps of establishing a call between a first user equipment and a second user equipment, acquiring the identity of the second user equipment, and providing the identity of the second user equipment to the first user equipment. The invention has the advantage that it enables a law enforcement agent (for example a police officer or investigator) to track the equipment that is used by a person for a particular call. When a suspect call is received, a law enforcement agent can easily return a call to that phone, even when the SIM card of that phone is swapped. When placing a call to a suspect number, the law enforcement officer can easily determine on which device the call is answered and then determine which other persons (MSISDNs) have been using that device.

Description

Be used to obtain the method and apparatus of the IMEI that is associated with IMSI
Technical field
The present invention relates to method and node in the telecommunication system, particularly, relate to the method and the node that are used for providing to second subscriber equipment sign of first subscriber equipment at telecommunication system.
Background technology
The security risk of Zeng Jiaing has produced the demand that call is monitored day by day.A kind of form of monitoring is the Lawful intercept of the law enforcement agency subtend target call initiating or initiate from target.Law enforcement agency is defined as carrying out telecommunications by statutory authority and intercepts the main body of (that is, relating to the concrete communication of objectives).
In order to carry out legal intercepting, law enforcement agency can monitor any sign in a plurality of different identifications that may be assigned to target, for example, the International Mobile Station Equipment Identification of target (IMEI), international mobile subscriber sign (IMSI) and/or travelling carriage International ISDN number (MSISDN).
IMEI for example is defined among the 3GPP standard TS 23.003.As can be seen from Figure 1, the structure of IMEI comprises 8 type assigned code (TAC), sequence number (SNR) and standby numerical digit of 6.Thereby law enforcement agency can be under legal indication passes through the communication that the particular user equipment device is set up in the monitoring communications network, that is, and and the communication of using the sequence number that is included in the target device in the IMEI to set up.
(for example, because it is used by suspect or suspicion tissue) then can order this IMEI is carried out Lawful intercept when certain the objectives equipment with certain concrete IMEI is marked as the suspicion object.Add at 3GPP standard TS 42.033 and TS 43.033 and the etsi standard TS 101671 of the switching interface that relates to the Lawful intercept that is used for telecommunication traffic to have defined the specification requirement that is used to carry out Lawful intercept.
The problem of carrying out such Lawful intercept about objectives equipment is at first must know the IMEI (perhaps similar sign) of target device, so that can monitor this IMEI before carrying out Lawful intercept.
Summary of the invention
The purpose of this invention is to provide a kind of method and node that is used for providing to second subscriber equipment sign of first subscriber equipment at telecommunication system.
According to a first aspect of the invention, provide a kind of method in the node of telecommunication system.The method comprising the steps of: receive the setup requests between first subscriber equipment and second subscriber equipment; Obtain the sign of second subscriber equipment; And the sign that described second subscriber equipment is provided to described first subscriber equipment.
At obtaining step and/or before step is provided, this method can also comprise that determining whether described first subscriber equipment has been subscribed to allows described first subscriber equipment to know the step of service of the sign of described second subscriber equipment.
Subscribe in response to described first subscriber equipment and to allow described first subscriber equipment to know the service of the sign of described second subscriber equipment, can be automatically or optionally carry out the step of obtaining the step of sign and/or sign being provided.
According to an embodiment, described obtaining step may further comprise the steps: the initial address message (IAM) that uses ISDNYong Hubufen (ISUP) agreement sends request to the sign of described second subscriber equipment from described node to Section Point, and uses the response message (ANM) of ISDNYong Hubufen (ISUP) agreement or connection message (CON) receives described second subscriber equipment from described Section Point sign.
According to another embodiment, described obtaining step comprises: the initial address message (IAM) of use ISDNYong Hubufen (ISUP) agreement receives the step of the sign of described second subscriber equipment from described Section Point.
According to another embodiment, described obtaining step may further comprise the steps: use ISDNYong Hubufen (ISUP) information request message to send request to the sign of described second subscriber equipment from described node to Section Point, and use ISDNYong Hubufen (ISUP) informational message to receive the sign of described second subscriber equipment from described Section Point.
Before direct transfer application part (DTAP) message and/or non-structured supplementary service data (USSD) message of carrying out the one or more enhancings between described node and described first subscriber equipment, can carry out the step that sends the ISUP information request message and receive the ISUP informational message.
The direct transfer application part agreement (DTAP) that provides the step of the sign of described second subscriber equipment to comprise use to strengthen to described first subscriber equipment and/or the step of non-structured supplementary service data (USSD) agreement.
According to a further aspect in the invention, provide node at telecommunication system.This node comprises: the device that is suitable for receiving the setup requests between first subscriber equipment and second subscriber equipment; Be suitable for obtaining the device of the sign of second subscriber equipment; And the device that is suitable for providing the sign of described second subscriber equipment to described first subscriber equipment.
According to an embodiment, described node also comprises and is suitable for determining whether described first subscriber equipment subscribes to the device of service that allows described first subscriber equipment to know the sign of described second subscriber equipment.
The device that is suitable for obtaining sign can be configured to use described node and with Section Point that described second subscriber equipment is associated between one or more ISDNYong Hubufens (ISUP) message of sending.
According to an embodiment, at least one in described ISDNYong Hubufen (ISUP) message comprises: initial address message (IAM), response message (ANM), connection message (CON), information request message or informational message.
Can provide the device of the sign of described second subscriber equipment to be configured to use the direct transfer application part agreement (DTAP) and/or non-structured supplementary service data (USSD) agreement of enhancing to described first subscriber equipment with being suitable for.
Be suitable for obtaining the device of sign and/or be suitable for providing the device of sign can be operating as automatically or the specific request of the sign of knowing described second subscriber equipment of optionally being carried out in response to described first subscriber equipment.
The present invention has the advantage that makes the subscriber equipment of winning (for example, the subscriber equipment of representing from the law enforcement of law enforcement agency) can receive a side's (for example, employed second subscriber equipment of suspicion target) who is connected sign.
Description of drawings
In order to understand the present invention better, and clearly show that how to realize the present invention, now will only come with reference to the following drawings as the mode of example, in the accompanying drawings:
Fig. 1 shows the structure according to the International Mobile Station Equipment Identification (IMEI) of 3GPP standard TS 23.003;
Fig. 2 shows the flow chart that the step of being carried out by a first aspect of the present invention is illustrated;
Fig. 3 shows node according to an aspect of the present invention;
Fig. 4 show when from first subscriber equipment when second subscriber equipment makes a call, the step of Zhi Hanging according to one embodiment of present invention;
Fig. 5 a show when from first subscriber equipment when second subscriber equipment makes a call, the step of carrying out according to another embodiment;
Fig. 5 b show when from first subscriber equipment when second subscriber equipment makes a call, the step of carrying out according to another embodiment;
Fig. 6 shows when first subscriber equipment during from the second subscriber equipment receipt of call, the step of carrying out according to another embodiment;
Fig. 7 shows when first subscriber equipment during from the second subscriber equipment receipt of call, the step of carrying out according to another embodiment;
Fig. 8 shows when first subscriber equipment during from the second subscriber equipment receipt of call, the step of carrying out according to another embodiment;
Fig. 9 shows when first subscriber equipment during from the second subscriber equipment receipt of call, the step of carrying out according to another embodiment;
Figure 10 show when by IP multimedia system (IMS) from first subscriber equipment when second subscriber equipment makes a call, the step of carrying out according to another embodiment; And
Figure 11 shows the further details of the step of carrying out in the IMS of Figure 10.
Embodiment
The present invention pay close attention to make the subscriber equipment of winning can receive or learn second subscriber equipment sign (for example, IMEI) telecommunication system and method, wherein first subscriber equipment for example is the employed subscriber equipment of law enforcement agency, second subscriber equipment for example is a phone of once calling out use (for example, to calling that the suspect initiates or initiates from the suspect) in suspicion.In some cases, the law enforcement representative may be interested in especially the sign (IMEI) of knowing certain concrete subscriber equipment of calling out.By definition, IMEI is associated with concrete subscriber equipment.When the SIM that is used for certain concrete subscriber equipment was replaced, the calling of initiating or initiating from this subscriber equipment to this subscriber equipment still demonstrated identical IMEI, and no matter whether SIM is replaced.In other words, identical IMEI will be placed in the call detail record (CDR) of serving mobile switching center (MSC).
The invention provides by simple means makes the law enforcement structure can obtain or learn the mechanism of far-end one side's (calling party or callee) IMEI.The present invention has numerous application.For example, law enforcement agency for example can notice that two suspicion are called out and show identical IMEI, and these two suspicion are called out to be set up as and gone to or come from different people (subscriber).This will indicate these callings is to initiate from identical subscriber equipment, thereby corresponding caller/called foundation each other in some way got in touch.
Below will be about obtaining or obtain the International Mobile Station Equipment Identification (IMEI) of subscriber equipment (for example, target) and providing this IMEI to carry out following description to another subscriber equipment (for example, law enforcement representative).Yet, should be understood that the present invention can be determined can be used to discern the other forms of information of a specific subscriber equipment by comparable applications, include but not limited to international mobile subscriber sign (IMSI).
In addition, though carry out following description about the IMEI that determines caller/callee to carry out Lawful intercept, should be understood that and caller/callee's sign or IMEI can be used for any purpose or application, include but not limited to follow the tracks of concrete equipment.For example, can use the present invention to come to provide input to the legal investigation work of routine.
Its most widely aspect, the present invention relates to when between subscriber equipment and another subscriber equipment, set up calling out, obtain the sign of this subscriber equipment and the sign that this subscriber equipment is provided to other subscriber equipmenies.With reference to figure 2, this aspect of the present invention comprises step: receive the setup requests (step 101) between first subscriber equipment and second subscriber equipment, obtain the sign (step 103) of second subscriber equipment, and the sign (step 105) that second subscriber equipment is provided to first subscriber equipment.In the step of the sign of obtaining second subscriber equipment (promptly, step 103) and/or provide to first subscriber equipment second subscriber equipment sign step (promptly, step 105) before, the present invention can also comprise that determining whether first subscriber equipment has been subscribed to allows first subscriber equipment to obtain or receive the step of service of the sign of second subscriber equipment, shown in step 102 and 104.The example that the following examples have been described the sign that can how to obtain subscriber equipment and how sign can be provided to other subscriber equipmenies.This embodiment has also described when make a call or during from the target UE receipt of call example that can how to realize this to target UE.
Fig. 3 shows node 30 (for example, the mobile switching centre in the communication network) according to an aspect of the present invention.Node 30 comprises the receiving system 31 that is used to receive the setup requests between first subscriber equipment and second subscriber equipment.Receiving system can comprise interface (for example, be used for another mobile switching centre (MSC) and/or travelling carriage (as, subscriber equipment) communication interface).Node 30 also comprises the deriving means 32 of the sign that is used to obtain subscriber equipment.Deriving means 32 can comprise processor, and this processor for example is suitable for obtaining by control receiving system or the internal storage (not shown) searching mark information in the node 30 sign of subscriber equipment.Node 30 also comprises the generator 33 that is used for providing to another subscriber equipment the sign of subscriber equipment.
Fig. 4 show according to one embodiment of present invention carry out, be used to make the subscriber equipment MS-A that wins can obtain the step of the sign of the second subscriber equipment MS-B.Should be noted that the step shown in not all Fig. 4 all is that the present invention is requisite, and during this process, also can carry out other step (not shown), and do not deviate from scope of the present invention.
With reference to figure 4, in step 201, the first subscriber equipment MS-A (for example, law enforcement representative subscriber equipment) by with provide first mobile switching centre of service to communicate for the first subscriber equipment MS-A to begin to set up the processing of calling out with the second subscriber equipment MS-B.Step 201 can comprise direct transfer application part (DTAP) setting up procedure.If determine that for the first mobile device MS-A provides the first moving exchanging center MSC-A of service the first subscriber equipment MS-A needs the sign of the second subscriber equipment MS-B, obtains the step of the sign of the second subscriber equipment MS-B for the first mobile device MS-A provides the first moving exchanging center MSC-A of service.
In one embodiment, subscribed to reservation service (promptly based on the first subscriber equipment MS-A, permission provides the sign of the second subscriber equipment MS-B or makes the service known to the first subscriber equipment MS-A of being designated of the second subscriber equipment MS-B to the first subscriber equipment MS-A) this fact, first moving exchanging center MSC-A determines that the first subscriber equipment MS-A needs the sign of the second subscriber equipment MS-B.The subscription of reservation service is confirmed that the first subscriber equipment MS-A is authorized to or ratifies to receive the sign of second subscriber equipment.In other words, the first subscriber equipment MS-A has the form that " special permission " subscribes to.Can in the attaching position register (HLR) of the first subscriber equipment MS-A, form the part of ordered service to the subscription of this special permission service, and can transmit to the MSC-A of first subscriber equipment from HLR.For example, can use a value in the available code value (that is backed-up value) of the SS-code value among the MAP (as in standard 3GPP TS29.002, defining) will be sent to the MSC-A of first subscriber equipment to the subscription of this special permission service.
If first moving exchanging center MSC-A determines the first mobile device MS-A and has subscribed to this service that first moving exchanging center MSC-A can obtain the step of the IMEI of the second subscriber equipment MS-B.For example, in step 202a and 202b, first moving exchanging center MSC-A with communicate for the second mobile device MS-B provides the second moving exchanging center MSC-B of service.In Fig. 4, this is shown as and is undertaken by intermediate or GMSC (gateway mobile switching center) GMSC-B.The existence that should be understood that intermediate or GMSC (gateway mobile switching center) GMSC-B only is optionally, and can omit and do not deviate from scope of the present invention.
The IMEI of the second subscriber equipment MS-B can be requested, for example when between the first subscriber equipment MS-A and the second subscriber equipment MS-B, setting up calling, use ISDNYong Hubufen (ISUP) message that between first moving exchanging center MSC-A and second moving exchanging center MSC-B, sends to ask.For example, can use the one or more bits in the parameter of being assigned in the ISUP initial address message (IAM) to indicate the IMEI that seeks the subscriber equipment MS-B that is connected.For example can transmit this request at a Spare bit in " the optionally calling transfer designator " parameter among the ISUP IAM (as according to ITU-T Q.763, the 3.38th part is defined).
For providing the second moving exchanging center MSC-B of service, the second mobile device MS-B can during the DTAP setting up procedure shown in step 203 and 204, obtain the IMEI of the second subscriber equipment MS-B.Alternatively, second moving exchanging center MSC-B can have the IMEI (for example being stored in the IMEI in its memory) of the second available subscriber equipment MS-B, and standard 3GPPTS 24.008 " Authentication and ciphering request " process is set forth this.In other words, second moving exchanging center MSC-B may obtain the IMEI of the second subscriber equipment MS-B before during DTAP process before, and this IMEI is kept in its internal storage using with the MAP message of being assigned, MAP message for example is (ATI) result and upgrade position (UL) of 3GPP TS 29.002 defined " Any Time Interrogation ".
When providing the second moving exchanging center MSC-B of service to receive request at the IMEI of this second subscriber equipment MS-B for the second subscriber equipment MS-B (for example, in aforesaid ISUP IAM message), second moving exchanging center MSC-B can be included in the IMEI of the second subscriber equipment MS-B among step 205a and the 205b from second moving exchanging center MSC-B to ISUP connection message (CON) or ISUP response message (ANM) that first moving exchanging center MSC-A sends.As above mention, though isup message is depicted as through intermediate or GMSC (gateway mobile switching center) GMSC-B, yet this only is optionally, when message between MSC-A and the MSC-B or between MSC-B and the MSC-A directly under the situation of process, also can use the present invention.When using ISUP CON or ANM to transmit IMEI, can use the universal number parameter to transmit IMEI, for example, use Q.763 in defined standby numbering qualifier designator (the Number qualifier indicator) value in the 3.26th part of ITU-T.
Shown in step 206, (for example can use suitable signaling message, the DTAP signaling that strengthens) and suitably the first subscriber equipment MS-A of modification, come to report to the first subscriber equipment MS-A IMEI (the further details of DTAP signaling can find) of the second subscriber equipment MS-B in standard 3GPP TS 24.008, the 9.3.5 part from first moving exchanging center MSC-A.The parameter of assigning can be added in the connection message (CON); Described parameter comprises identification information, that is, and and IMEI.
Alternatively, as shown in step 207, can use the USSD among first moving exchanging center MSC-A should be used for carrying out the IMEI of the second subscriber equipment MS-B from the transmission of first moving exchanging center MSC-A to the first subscriber equipment MS-A.For example, first moving exchanging center MSC-A can call resident USSD and use, and this USSD uses the IMEI (in USSD message) that use standard USSD signaling transmits to the first subscriber equipment MS-A the second subscriber equipment MS-B.
When receiving the IMEI of the second subscriber equipment MS-B, the first subscriber equipment MS-A for example can be suitable for the IMEI of the second subscriber equipment MS-B is placed in the call log, and alternatively the IMEI of the second subscriber equipment MS-B is shown with one or more other parameters (for example connection line sign, time or date that may be available).
From the embodiment of Fig. 4 as can be seen, subscribed to service, the IMEI of the second subscriber equipment MS-B is provided from the trend first subscriber equipment MS-A based on the first subscriber equipment MS-A.In other words, the first subscriber equipment MS-A of initiation originating call (promptly, the law enforcement representative) has subscription at identification second subscriber equipment, mean each calling of setting up at by the first subscriber equipment MS-A, for providing the first moving exchanging center MSC-A of service, the first subscriber equipment MS-A will obtain the sign of the second subscriber equipment MS-B by the request to IMEI that comes from the second subscriber equipment MS-B is included among the ISUP IAM.
According to another embodiment, the subscription of the first subscriber equipment MS-A can have " default request qualifier ".The default request qualifier is the additional parameter that is associated with subscription.The default request qualifier has following function:
1: default request qualifier=TRUE (very).When the default request qualifier is set to " true ", this means that when the outgoing call set up from first subscriber equipment MS-A to the second subscriber equipment MS-B default-action of first moving exchanging center MSC-A is that the request to the IMEI of the second subscriber equipment MS-B is included among the ISUP IAM.In other words, when the default request qualifier is set to " true ", MSC-A will ask the identifier of the subscriber equipment that connected automatically.Yet when first moving exchanging center MSC-A sends call setup request message, the first subscriber equipment MS-A can be to the MSC-A indication for this concrete calling, and the first subscriber equipment MS-A does not wish to receive the sign of the second subscriber equipment MS-B.In other words, the first subscriber equipment MS-A can carry out particular request and overthrows (override) default setting.
2: default request qualifier=FALSE (vacation).When the default request qualifier is set to " false ", this means that when the outgoing call set up from first subscriber equipment MS-A to the second subscriber equipment MS-B default-action of first moving exchanging center MSC-A is will the request of the IMEI of the second subscriber equipment MS-B not to be included among the ISUP IAM.In other words, when the default request qualifier is set to " false ", MSC-A will ignore the request that comprises the IMEI of the subscriber equipment that connected automatically.Yet when first moving exchanging center MSC-A sends call setup request message, the first subscriber equipment MS-A can be to the MSC-A indication for this concrete calling, and the first subscriber equipment MS-A wishes to receive the IMEI of the second subscriber equipment MS-B.In other words, the first subscriber equipment MS-A can carry out particular request and overthrows default setting.
Fig. 5 a and Fig. 5 b show the part signaling sequence, this part signaling sequence has been described being used for being pursued by the first subscriber equipment MS-A use of the sign indicating number of calling out indication, this sign indicating number for example is " * 90* " and " * 91* ", is included in the call setup request message that first moving exchanging center MSC-A sends.
With reference to figure 5a, if first yard (for example " * 90* ") is placed on before the telephone number 0161249911 (promptly, produce the * 90*0161249911 as shown in step 301a), this has indicated at this concrete calling, is not asking the sign of the second subscriber equipment MS-B.MSC-A according to this embodiment is configured to remove first yard " * 90* " from the numeric string of being dialed, and forbids (suppress) IMEI request in going out to talk about ISUP IAM, as shown in step 302a.
With reference to figure 5b, if second yard (for example " * 91* ") is placed on before the telephone number 0161249911 (promptly, produce the * 91*0161249911 as shown in step 301b), this has indicated at this concrete calling, the sign of asking the second subscriber equipment MS-B.MSC-A according to this embodiment is configured to remove first yard " * 91* " from the numeric string of being dialed, and the IMEI request is included in out among the words ISUP IAM, as shown in step 302b.Follow-uply be used for obtaining and provide the stage of IMEI can follow the above step of describing at Fig. 4.
To be included in such as the sign indicating number of " * 90* " or " * 91* " by the first subscriber equipment MS-A in the numeric string of being dialed that first moving exchanging center MSC-A sends, this is the criterion behavior at the GSM terminal.
From as can be seen last, even when the first subscriber equipment MS-A has subscribed to this service, the first subscriber equipment MS-A still can be based on acquiescence, perhaps based on selecting to withdraw from this service (that is the sign of the second subscriber equipment MS-B) that receives by calling out.Thus, subscribed in response to first subscriber equipment and to allow first subscriber equipment to know the service of the sign of second subscriber equipment, automatically or optionally carried out the step of obtaining the step of sign and/or sign being provided.
To recognize by Fig. 4, in first moving exchanging center MSC-A, " obtaining step " in the flow chart of Fig. 2 may further comprise the steps: use the initial address message (IAM) of ISDNYong Hubufen (ISUP) agreement to come to send to the request of the sign of the second subscriber equipment MS-B (promptly to second moving exchanging center MSC-B from first moving exchanging center MSC-A, and use the response message (ANM) of ISDNYong Hubufen (ISUP) agreement or the sign (step 205b) that connection message (CON) comes to receive from second moving exchanging center MSC-B the second subscriber equipment MS-B step 202a).In Fig. 4, Fig. 2 " step is provided " may further comprise the steps: use sign that the DTAP signaling sends the second subscriber equipment MS-B to the first subscriber equipment MS-A from first moving exchanging center MSC-A (promptly, and/or use USSD signaling (that is step 207) step 206).
Also will recognize by Fig. 4, in second moving exchanging center MSC-B, " obtaining step " in the flow chart of Fig. 2 may further comprise the steps: the sign of the retrieval second subscriber equipment MS-B (for example from the memory of second moving exchanging center MSC-B, when having obtained this IMEI before), perhaps use the sign (step 203,204) of DTAP signaling from the instant retrieval of the second subscriber equipment MS-B second subscriber equipment MS-B.In Fig. 4, " step is provided " of Fig. 2 is included in the step that sends IMEI in ISUPANM or the ISUP CON message from second moving exchanging center MSC-B to first moving exchanging center MSC-A.
As can be seen, Fig. 4, Fig. 5 a and Fig. 5 b provide the situation of the sign of target UE (that is second subscriber equipment) to handle representing when target UE is set up calling from law enforcement to law enforcement representative (that is first subscriber equipment).The present invention can also be applied to when from the situation of target UE when law enforcement representative makes a call.Thus,, also obtain the sign of the second subscriber equipment MS-B, and provide it to the first subscriber equipment MS-A during when setting up to the calling of the first subscriber equipment MS-A from the second subscriber equipment MS-B.
Subscribed to predetermined service (promptly in response to the first subscriber equipment MS-A, " special permission " that make the subscriber equipment MS-A that wins can know or receive the sign of the second subscriber equipment MS-B subscribes to), can obtain the IMEI of the second subscriber equipment MS-B and provide it to the first subscriber equipment MS-A.Can in the attaching position register (HLR) of the first subscriber equipment MS-A, form the part of ordered service to the subscription of this special permission service, and can use in the standby or available SS code value among the MAP (in 3GPP standard TS 29.002, having defined this code value), transmit to first moving exchanging center MSC that service is provided for the first subscriber equipment MS-A-A from HLR.
According to an embodiment, (that is, the calling party) sign is for example undertaken by sign is included among the ISUP IAM can unconditionally to provide the second subscriber equipment MS-B to the first subscriber equipment MS-A (that is, the callee) with aforementioned special permission subscription.According to another embodiment, can come to provide the sign of the second subscriber equipment MS-B by the ISUP information request to the first subscriber equipment MS-A with aforementioned special permission subscription.
Obtain the further details of first embodiment in the foregoing description referring now to Fig. 6.When (for example at the first subscriber equipment MS-A, the law enforcement representative) sets up when calling out in the PLMN in the country under, from the second subscriber equipment MS-B when the first subscriber equipment MS-A set up to call out, second moving exchanging center MSC-B that service is provided for second mobile device is included in the IMEI of the second subscriber equipment MS-B in ISDNYong Hubufen (ISUP) initial address message (IAM) that sends between second moving exchanging center MSC-B and the first moving exchanging center MSC-A (step 401,402,403).For example, can use the backed-up value of the numbering qualifier designator in the universal number parameter of ISUP IAM message.
At first moving exchanging center MSC-A place, subscribed to described special permission service (promptly if determine ISUP IAM arrival, the service of the IMEI of receipt of call side) subscriber equipment, for providing the first moving exchanging center MSC-A of service, the first subscriber equipment MS-A obtains this IMEI, and for example providing when calling out to the callee, the IMEI of the second subscriber equipment MS-B is provided to the first called subscriber equipment MS-A.
As shown in step 404, can be by the first subscriber equipment MS-A of the enhancing of DTAP signaling procedure and modification being come to report to the first subscriber equipment MS-A IMEI of the second subscriber equipment MS-B.For example, can use the DTAP signaling procedure of definition in 3GPP standard TS 24.008 9.3.23 part.The parameter of assigning can be added to message being set, described parameter comprises the IMEI of the second subscriber equipment MS-B.
Alternatively, can use USSD among first moving exchanging center MSC-A should be used for transmitting the IMEI of the second subscriber equipment MS-B to the first subscriber equipment MS-A.Use for the first subscriber equipment MS-A provides the first moving exchanging center MSC-A of service can call resident USSD, this USSD uses use standard USSD signaling and comes to transmit IMEI to the first subscriber equipment MS-A in USSD message, shown in step 405.
The first subscriber equipment MS-A can be placed on the IMEI of the second subscriber equipment MS-B in the call log.According to an embodiment, the first subscriber equipment MS-A is suitable for the IMEI of the second subscriber equipment MS-B is shown to the first subscriber equipment MS-A with other information (if available), and these other information for example are calling line sign, time or date.In other words, user equipment (ue) device comprises the display unit of the sign that is suitable for showing the subscriber equipment that is connected.
From the embodiment of above Fig. 6 as can be seen, when setting up when calling out to the first subscriber equipment MS-A from the second subscriber equipment MS-B, (or unconditionally) provides the sign of the second subscriber equipment MS-B to the first subscriber equipment MS-A automatically.Subscribed to the result of this service as the first subscriber equipment MS-A, can provide this IMEI from the trend first subscriber equipment MS-A.
As early mentioning,, can come to provide the sign of the second subscriber equipment MS-B by the ISUP information request to the first subscriber equipment MS-A with aforementioned special permission subscription according to another embodiment.
Fig. 7 describes this embodiment.When be the first subscriber equipment MS-A (promptly, law enforcement representative or callee) when providing the first moving exchanging center MSC-A of service to receive ISUP IAM via step 502 and 503, first moving exchanging center MSC-A can ask to provide the IMEI of the second subscriber equipment MS-B for the calling party provides the second moving exchanging center MSC-B (that is, providing service for the second subscriber equipment MS-B) of service.
For example, in step 504 and 505, can use isup message " information request ".Can send the information request message that comprises " information request designator " parameter to second moving exchanging center MSC that service is provided for the second subscriber equipment MS-B-B from first moving exchanging center MSC-A of the first subscriber equipment MS-A.Can use a Spare bit in this parameter for example or a bit in the reservation bit to signal to inform and ask this IMEI.
In response, the second moving exchanging center MSC-B that is associated with the second subscriber equipment MS-B will send the ISUP informational message in step 506,507.The ISUP informational message will comprise the IMEI of the second subscriber equipment MS-B that is asked.Then, as above describe in more detail among Fig. 6, first moving exchanging center MSC-A can or provide calling party's IMEI by DTAP signaling (as shown in step 508) to the first subscriber equipment MS-A by USSD signaling (as shown in step 509).
From the embodiment of Fig. 7 as can be seen, first moving exchanging center MSC-A that service is provided for the first subscriber equipment MS-A is before being provided with message to first subscriber equipment MS-A transmission DTAP, IMEI to second moving exchanging center MSC-B request calling party (that is the second subscriber equipment MS-B).
Fig. 8 shows alternative, and thus, as shown in step 604, first moving exchanging center MSC-A is not having to provide calling to the first subscriber equipment MS-A under the situation about postponing.Afterwards, in the ongoing while of ring up, first moving exchanging center MSC-A uses isup message " information request " (step 605,606) and " information " (step 607,608) to come to obtain from second moving exchanging center MSC-B calling party's IMEI.When receiving IMEI, first moving exchanging center MSC-A provides this IMEI (step 609) by the USSD means of signaling to the first subscriber equipment MS-A.The embodiment of Fig. 8 has the advantage of not causing any delay in normal call establishment.
Therefore, also will recognize, and compare (that is, using IMEI unconditionally is included among the ISUP IAM) with unconditional report IMEI among Fig. 6, Fig. 7 and 8 embodiment provide the IMEI report (that is, by the ISUP information request) based on request.Fig. 7 and 8 embodiment have following advantage: only just transmit IMEI (that is, only having when called party subscriber when IMEI showed the subscription of serving) by network in needs.
In the embodiment of Fig. 7 and 8, suppose that second moving exchanging center MSC-B has had the IMEI that is stored in the second subscriber equipment MS-B wherein.Then, should be noted that when also not storing this IMEI in second moving exchanging center MSC-B, these embodiment can also relate to other steps between the second moving exchanging center MSC-B and the second subscriber equipment MS-B.
In Fig. 6,7 and 8 embodiment, when the first subscriber equipment MS-A has subscribed to service, provide the sign of the second subscriber equipment MS-B from the trend first subscriber equipment MS-A.In other words, no matter when the first subscriber equipment MS-A (for example, the law enforcement representative) receives calling, first moving exchanging center MSC-A just will provide calling party's IMEI (situation among Fig. 6) to first subscriber equipment, perhaps before providing IMEI to first subscriber equipment, to the request (situation in Fig. 7 and 8) of calling party's generation, so that the first subscriber equipment MS-A can receive calling party's sign (that is the sign of the second subscriber equipment MS-B) to IMEI.
According to an alternative embodiment, the subscription of the first subscriber equipment MS-A can have " default request qualifier ".The default request qualifier is the additional parameter that is associated with subscription.The default request qualifier has following function:
1: default request qualifier=TRUE.When the default request qualifier is set to " true ", this means that when receiving the words calling default-action of first moving exchanging center MSC-A is to the request of calling party's transmission to IMEI.
2: default request qualifier=FALSE.When the default request qualifier is set to " false ", this means that when receiving the words calling default-action of first moving exchanging center MSC-A is not to the request of calling party's transmission to IMEI.When replying this calling, the first subscriber equipment MS-A can send indication to first moving exchanging center MSC-A: at this concrete calling, the first subscriber equipment MS-A wishes to receive calling party's IMEI.
From as can be seen last,, can follow the process shown in Fig. 7 or 8 if the default request qualifier is set to " true ".In other words, under this operator scheme, when receiving the words calling, the default-action of first moving exchanging center MSC-A is to the request of calling party's transmission to IMEI.
If the default request qualifier is set to " false ", the default-action of first moving exchanging center MSC-A is not to the request of calling party's transmission to IMEI.
Yet with reference to figure 9, setting up calling back (step 701-708), shown in step 709, the first subscriber equipment MS-A can pursue the request of calling out, and wherein, sends specific request from the first subscriber equipment MS-A to first moving exchanging center MSC-A.This request can have the form of non-structured supplementary service data (USSD) message.The example of USSD message for this purpose is to use the code structure such as " * 91# ", and this structure is according to GSM TS 02.30.
In response to receiving this USSD sign indicating number, first moving exchanging center MSC-A will ask IMEI (step 710,711,712,713) from the calling party.For example, as mentioned above, can use the ISUP signaling mechanism to obtain calling party's IMEI.When first moving exchanging center MSC-A (promptly from the second subscriber equipment MS-B, when second moving exchanging center MSC calling party)-B receives this IMEI, first moving exchanging center MSC-A can send this IMEI to the first subscriber equipment MS-A, for example by IMEI being included in to carrying out in the USSD request responding message.
The embodiment that should be understood that Fig. 6, Fig. 7, Fig. 8 and Fig. 9 has the advantage of obtaining and provide to first subscriber equipment sign of second subscriber equipment when the calling of setting up from second subscriber equipment to the first subscriber equipment.A very useful feature that promotes by the present invention is as follows.When the suspicion that receives from subscriber equipment was called out, law enforcement agency can easily return calling to this concrete phone, even under the situation that the SIM card of this phone has been replaced.As mentioned above, the call log in the phone can be revised as by adaptation and comprise IMEI, if available.When this call log of rolling view (scrolling though), phone can be initiated the calling to this IMEI.
For the feature of assisting to call out, from the DTAP of GSM phone callee BCD number in the message is set and is revised as by adaptation and comprises the numbering plan designator (NPI) and the type of number (TON) of representing IMEI at IMEI.
The foregoing description is mentioned: come to provide to first subscriber equipment a long-range side's IMEI by the mode that IMEI can be presented on first subscriber equipment.According to an alternative embodiment, can in detailed call log, provide a long-range side's IMEI, for example, on the remote location based on the server of web, provide.According to this embodiment, the subscriber can be via the first user equipment access call log.Can use to reside in should be used in first subscriber equipment and carry out this call log, for example, be used to visit the http client of this call log.Subscriber with described special permission service subscription (IMEI that is used for receiving remote caller or callee) can select IMEI to be established to the calling of this IMEI by overviewing based on the call log of web and from described call log.
Though about (promptly as first subscriber equipment of portable terminal (for example GSM terminal), the subscriber equipment of law enforcement representative) the foregoing description has been described, but should be noted that the present invention also can be applicable to as first subscriber equipment under the form of ISDN terminal rather than portable terminal.In such an embodiment, ISDN terminal can use Digital Subscriber Signaling No.1 as access protocol (defined as ITU-TQ.931).
The present invention has the advantage that the law enforcement agency of making (for example, police officer or investigator) can be tracked as individual employed equipment at concrete calling.When the suspicion that receives was called out, even in the SIM card of having replaced this phone, law enforcement agency also can easily return calling to this phone.When the calling carried out the suspicion number, the law enforcement official can easily determine to reply on which equipment in this calling, and thereby determines that other which people (MSISDN) once used this equipment.
Should be noted that though invention has been described about providing Lawful intercept based on IMEI, yet the present invention pays close attention to the IMEI this respect that a long-range side is provided to the law enforcement representative, rather than Lawful intercept itself.
In addition, though above embodiment mentions the IMEI that uses isup message to obtain second subscriber equipment, should be understood that and under the situation that does not deviate from the defined scope of the present invention of claims, also can use other agreements.Similarly, can use other signaling protocols except DTAP and USSD between mobile switching centre and subscriber equipment, to transmit IMEI.
Embodiment mentions the use to the mobile switching centre that is used to connect subscriber equipment (MSC).Yet, should be appreciated that, can use other nodes or Control Node to obtain identification information, and provide this identification information to subscriber equipment.
Should be noted that, above embodiment can be used with any type of communication network, comprise GSM, 3G, LTE, ISDN or PSTN communication network.In addition, should be noted that, can also under the situation of use IP multimedia system (IMS), use the present invention as service network and/or transmission network.When between two GSM terminals, setting up between two ISDN terminal or between GSM terminal and ISDN terminal when calling out, this calling can be crossed the IMS network.Crossing of IMS network can be used for various purposes, comprise:
-when using the GSM phone, the calling party is the subscriber of IMS network; The IMS network is used to handle the audio call of setting up from the calling party (or other forms of communication session);
-when using the GSM phone, the callee is the subscriber of IMS network; The IMS network is used to handle the audio call of setting up to the callee (or other forms of communication session);
-be used as in the network IMS network or the transmission network between heterogeneous networks.
IMS is used for call setup with session initializtion protocol (SIP).According to embodiments of the invention,, will be mapped to corresponding sip message and SIP header or parameter as described above to request and this IMEI self of IMEI for IMS is used as transmission network.By this way, can transmit request and this IMEI self pellucidly in mobile switching centre or for caller and callee provide the PSTN inter-exchange of service by the IMS network to IMEI.The use of IMS network is described by the example shown in Figure 10 as mentioned above.
Figure 10 has illustrated a kind of layout, by this layout, provide the IMS core to second subscriber equipment (for example to be used as from the first subscriber equipment MS-A (for example, using the law enforcement representative of GSM mobile handset), use the target subscriber of GSM mobile handset) transmission network of the calling of setting up, as step 801 to shown in 811.The calling of setting up between the first subscriber equipment MS-A and the second subscriber equipment MS-B is crossed the IMS network for one of above reason that provides.In addition, when crossing the IMS network, this IMEI request and IMEI self are mapped to corresponding sip message and SIP header or parameter, make thus and request and the IMEI self to IMEI can be transmitted the network by IMS pellucidly.
Figure 11 provides during crossing the IMS network, and how request and the IMEI self of IMEI is shone upon related further details.At control plane, the border that first Media Gateway Controller (MGC-A) constructs the IMS network is connected IMS network and circuit-switched network (for example, GSM or PSTN).For example, in the example of Figure 10, first media gateway controller MGC-A is at the IMS network and provide for the first subscriber equipment MS-A between the first moving exchanging center MSC-A of service control interface is provided.
The combination of the CSCF shown in Figure 11 (CSCF) representative inquiry CSCF (I-CSCF) and serving CSCF (S-CSCF).Figure 11 does not illustrate such as home subscriber system (HSS) or Breakout Gateway Control Function (BGCF).Yet, should be appreciated that depend on actual calling, these nodes and other nodes can form the part of the call setup function in the IMS network under adaptable situation.
Figure 11 has described the dialogue between " the ISUP IAM " to " SIP invitation " that first media gateway controller MGC-A carries out, promptly between the step 901 and 902.In other words, first media gateway controller MGC-A becomes SIP header " request: IMEI " with " request IMEI " parameter transformation among the ISUP IAM.Cross IMS when signaling and arrive the GSM border, second media gateway controller MGC-B invites SIP " request: IMEI " conversion to return ISUP IAM parameter " request IMEI ", that is, and and between step 903 and 904.
Similarly, cross the IMS network from callee (that is the second subscriber equipment MS-B) to the ISUPANM that calling party (that is the first subscriber equipment MS-A) sends.Second media gateway controller MGC-B becomes SIP header " IMEI:＜value〉" with the IMEI parameter transformation among the ISUP ANM, wherein,＜value〉the actual IMEI of expression.Will " IMEI:＜value〉" be placed in " SIP200Ok " message, shown between step 905 and 906.When signaling was crossed IMS arrival GSM border, first media gateway controller MGC-A became ISUPANM message with SIP 200OK message transformation." IMEI:＜value〉" that will come from SIP 200OK message is transformed into the IMEI among the ISUPANM.
From above Figure 10 and Figure 11 as can be seen, by the IMS network can be between calling party and callee's service MSC or local switch transparent transmission to request and the IMEI self of IMEI.
Though describe Figure 10 and Figure 11 about being used for from the layout that on behalf of target terminal, law enforcement make a call, should be appreciated that and any embodiment of IMS in the foregoing description can be used.
Should be noted that subscriber equipment can comprise any type of subscriber equipment, include but not limited to portable terminal, ISDN terminal or other-end.
Should be noted that embodiment above-mentioned is unrestricted the present invention in order to explanation, those of ordinary skills can design a lot of alternate embodiments, and the protection range that does not deviate from claims.Word " comprises " does not get rid of existence element or step listed in claim, and " one " and " one " does not get rid of a plurality of, and the function of some unit of mentioning in the claim can be finished in single processor or other unit.Any Reference numeral in the claim should be interpreted as restriction to its scope.

Claims (15)

1. the method in the node of a telecommunication system, described method comprises step:
Receive the setup requests between first subscriber equipment and second subscriber equipment;
Described method is characterised in that and comprises step:
Obtain the sign of second subscriber equipment; And
The sign of described second subscriber equipment is provided to described first subscriber equipment.
2. method according to claim 1, further comprising the steps of: determining whether described first subscriber equipment is subscribed to allows described first subscriber equipment to know the service of the sign of described second subscriber equipment, and described determining step is at described obtaining step and/or describedly carry out before step is provided.
3. method according to claim 2, wherein, subscribed in response to described first subscriber equipment and to allow described first subscriber equipment to know the service of the sign of described second subscriber equipment, automatically or optionally carried out described step and/or the described step that sign is provided of obtaining sign.
4. according to each described method in the claim 1 to 3, wherein, described obtaining step may further comprise the steps: the initial address message (IAM) that uses ISDNYong Hubufen (ISUP) agreement, send request from described node to Section Point to the sign of described second subscriber equipment, and the response message (ANM) or the connection message (CON) that use ISDNYong Hubufen (ISUP) agreement, receive the sign of described second subscriber equipment from described Section Point.
5. according to each described method in the claim 1 to 3, wherein, described obtaining step may further comprise the steps: use the initial address message (IAM) of ISDNYong Hubufen (ISUP) agreement, receive the sign of second subscriber equipment from Section Point.
6. according to each described method in the claim 1 to 3, wherein, described obtaining step may further comprise the steps: use ISDNYong Hubufen (ISUP) information request message, send request from described node to Section Point to the sign of described second subscriber equipment, and use ISDNYong Hubufen (ISUP) informational message, receive the sign of described second subscriber equipment from described Section Point.
7. method according to claim 6, wherein, before the step of direct transfer application part (DTAP) message of carrying out the one or more enhancings between described node and described first subscriber equipment and/or non-structured supplementary service data (USSD) message, carry out the step that sends the ISUP information request message and receive the ISUP informational message.
8. according to each described method in the claim 1 to 7, wherein, describedly provide the step of the sign of described second subscriber equipment to comprise: to use direct transfer application part (DTAP) agreement that strengthens and/or the step of non-structured supplementary service data (USSD) agreement to described first subscriber equipment.
9. the node in the telecommunication system, described node comprises:
Be suitable for receiving the device of the setup requests between first subscriber equipment and second subscriber equipment;
Described node is characterised in that and comprises:
Be suitable for obtaining the device of the sign of second subscriber equipment; And
Be suitable for providing the device of the sign of described second subscriber equipment to described first subscriber equipment.
10. node according to claim 9 also comprises: be suitable for determining whether described first subscriber equipment subscribes to the device of service that allows described first subscriber equipment to know the sign of described second subscriber equipment.
11. according to claim 9 or 10 described nodes, wherein, the described device that is suitable for obtaining sign is configured to: use described node and with Section Point that described second subscriber equipment is associated between one or more ISDNYong Hubufens (ISUP) message of sending.
12. node according to claim 11, wherein, at least one in described ISDNYong Hubufen (ISUP) message comprises: initial address message (IAM), response message (ANM), connection message (CON), information request message or informational message.
13. according to each described node in the claim 9 to 12, wherein, described being suitable for provides the device of the sign of described second subscriber equipment to be configured to described first subscriber equipment: use direct transfer application part (DTAP) agreement and/or non-structured supplementary service data (USSD) agreement that strengthen.
14. according to each described node in the claim 9 to 13, wherein, be suitable for obtaining the described device of sign and/or be suitable for providing the specific request of the sign of being known described second subscriber equipment that the described device of sign can make in response to described first subscriber equipment and automatically or optionally operate.
15. one kind with the user equipment (ue) device that uses according to each described node in the claim 9 to 14, described user equipment (ue) device comprises display unit, and described display unit is suitable for showing the sign of the subscriber equipment that is connected.
CN2008801320495A 2008-11-24 2008-11-24 Method and apparatus for aquiring an imei associated to an imsi Pending CN102224725A (en)

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Application publication date: 20111019